For those of you struggling to put 50 hours a year on your Cessna 172, consider the long and productive life of a 1982 P-model that was retired last week with 30,000 hours on it, likely making it the highest-time 172 in the world. The 172, with tail number V3-HDN, has been making as many as three or four flights a day in scheduled airline service for Tropic Air, which is based on San Pedro, an island off the coast of Belize. AVweb's Russ Niles spoke with Tropic Air President John Greif about the aircraft's history and his experience with a diesel-powered replacement.
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